Folding frame swedish type buck saw



v. DLNCANFIELD FOLDING FRAME SWEDISH TYPE BUCK SAW 2 Sheets-Sheet 1Filed July 11, 1958 'INVENTOR.' vmen. DAVID CANFIELD Oct. 27', 1959 v.D. CANFIELD 2,910,101

FOLDING FRAME SWEDISH TYPE BUCK SAW Film; July 11. 1958 2 Sheets-Sheet 2INVENTOR. VIRG|L4 DAVID CANFIELD United States FOLDING F SWEDISH TYPEBUCK SAW Virgil David Canfieid, Vashon, Wash. Application July 11, 1958,Serial No. 748,044

1 Claim. (Cl. 145-33 This invention relates to tools and moreparticularly to a hand saw.

It is an object of the present invention to provide a collapsibleSwedish type buck saw which can be used for the same purposes ofconventional Swedish type buck saws, but which is readily foldable intoa compact transport carrying position for use by hunters, sportsmen andthe like.

Another object of the present invention is to provide a foldable Swedishtype buck saw having a full size blade that is extremely flexible andeasily and safely packed for transport.

Still a further object of the present invention is to provide a buck sawof the above type which is rigid in the normal use position, but whichis loosely jointed when in the folded position so as to readily conformto. other articles in a pack used by sportsmen.

Other objects of the invention are to provide a folding frame buck sawbearing the above objects in mind which is of simple construction, has aminimum number of parts, is inexpensive to manufacture and efiicient inoperation.

For other objects and for a better understanding of the invention,reference may be had to the following detailed description taken inconjunction with the accompanying drawing, in which:

- Figure 1 is a front elevational View of a saw made in accordance withthe present invention in an operative position;

Figure 2 is a fragmentary cross sectional view taken along line 22 ofFigure 1;

Figure 3 is a transverse cross sectional view taken along line 3-4: ofFigure 1;

Figure 4 is an enlarged fragmentary cross sectional view taken alongline 4-4 of Figure 1;

Figure 5 is a perspective view of the saw shown in Figure l in a partlyfolded position;

Figure 6 is an enlarged fragmentary view of certain parts of theinvention in operative use.

Referring now more in detail to the drawing, a folding saw 10 made inaccordance with the present invention is shown to include a collapsibleback her constructed from a pair of back bar sections 12, 13 havingadjacent ends partially cut away anglewise to define a V -shape whenbrought together as shown in Figure 4, is pivotally hinged together atone end by means of a strong plastic strap 16, or the like, attached tomounting rivets 17 on bar sections 12, 13 so as to be readily movablebetween a normal axially aligned position, as shown in Figure 1, and acompletely folded position for convenient portability and/or storageduring periods of non-use. Figure 5 illustrates movement of theapparatus toward such a folded position. A sleeve 19 slidably supportedupon the back bar sections 12, 13 for longitudinal reciprocatingmovement releasably locks these sections in the axially aligned positionshown in Figure 1 when extended over the joint therebetween. A stopmember 18 carried by one back section 12 limits the longitudinalmovement of the sleeve 19 in one direction so as to properly'center itover the back sections 112, 13 in the manner illustrated in Figure 1. Apair of U-snaped hinge brackets 22 are pivotally apported upon theopposite ends of the back bar sections 12, 13 by means of transverselyextending bolts 23. Each of the hinge plates 22 integrally supports aleg 29, 21 for selective rotation between the extended position shown inFigure l in which they define an included obtuse angle with thelongitudinal axis of the back section, and a folded collapsed positionas illustrated in Figure 5. The legs are slotted at 24, 25. v i

A lever 26 having a circular end 27 is provided with an upward slantedwing 28 which is slotted at 29 to receive a saw blade 30. Bolts 32transversely secure the lever 26 to leg 26 and a keeper pin 33 securesthe wing of the lever to the saw blade 3h. The opposite end of the sawblade 30 is supported upon a similar keeper pin 34 carried by theotherone of the legs 21. Thus, by placing the saw blade 39 through slots29, 24, slot 25 and the keeper pins 33 and 34' applied thereto, thehandle 26 is in a spaced position relative to the leg 20, rotation ofthe handle lever 26 to the closed and opened position illustrated inFigure 6 of the drawing is operative to tension the blade 30 because ofthe relationship of the keeper pins 33, 34 with the lever 25 Thisstructure enables the blade 36 to be readily mounted and dismounted uponthe frame as it is moved between the folded and the open position foruse.

While various changes may be made in the detail construction, it shallbe understood that such changes shall be within the spirit and scope ofthe present invention as defined by the appended claim.

What 1 claim as new and desire to protect by Letters Patent of theUnited States is:

A collapsible Swedish type buck saw comprising, in

combination, a foldable back assembly including a pair I of backsections having adjacent ends, a pair of legs,

to an opposite end of said back assembly and including hinge platesintegral with one end of each of said legs,

and bolts p-ivotally securing each of said plates to one of said backsections, each plate having a stop portion limiting rotation thereoftoward an open position to define an obtuse included angle with saidback sections, hinged connection means connecting the adjacent ends ofsaid back assembly and including a strap supported by rivets in saidback sections, means selectively locking the adjacent ends of said backsections in rigid axially aligned relationship, a saw blade, positioningmeans on each one of said legs for supporting one end of said saw blade,and tightening means associated with one of said positioning means fortensioning said saw blade.

Wilson Feb. 19, 1957

